The device quoted "Manufacturer control fuel air metering".

Then I spoke with person at Advanced Auto parts and they said I should look into the "idle air control value" or a "vacuum hose". They did not have nor could they order this piece, and suggested I call up my Audi dealership.

My question..

has anyone experienced this error code? Any feedback will be appreciated.

 

17585 P1177 O2 Correction Behind Catalyst , B2 Limit Attained
A vacuum leak should also pop a lean code so check for problems around the second cat, see if you don't have a leak over there.